Table 1.

Sample sentences from the annotated PVT corpus.

Sentence	Brain Region 1	Direction	Brain Region 2
These experiments confirm projections from Pa, Pt, and other midline nuclei to the amygdala.	Pa	→	Amygdala
These experiments confirm projections from Pa, Pt, and other midline nuclei to the amygdala.	Pt	→	Amygdala
In addition, we found that the aPVT was strongly innervated by the ventral subiculum but this projection largely did not involve the pPVT.	aPVT	←	Ventral subiculum
The paraventricular thalamus (PVT), a midline thalamic nucleus, receives dense innervations from lateral hypothalamic orexin neurons (Peyron et al., 1998; Kirouac et al., 2005) and is involved in the regulation of cognition, anxiety, emotionality and addiction behaviors (Huang et al., 2006; Li et al., 2009, 2010a,b, 2011).	PVT	←	Hypothalamic orexin neurons

The first two sentences are from Hsu and Price (2009), the third sentence is from Li et al. (2014), and the last sentence is from Choi et al. (2012).